There is all sorts of possible orbits within the system. Both orbits very close to either BH or the star as well as orbits outside of the binary system orbiting

There is all sorts of possible orbits within the system. Both orbits very close to either BH or the star as well as orbits outside of the binary system orbiting both BH and the star would be very probable and stable. There are more complex orbits possible but these would be more rare and possibly none of those could be stable over billions of years.